Here is a tutorial of how I did my live trace.
First I found an image a solid colour for the most part. What I chose was a club penguin, penguin because it is a solid colour I then hit file import in inkscape and chose my image from downloads.
I then hit path trace bitmap
I then had a screen open with a whole bunch of options so what I did was chose brightness cutoff and hit ok on the bottom right hand corner
I then right clicked on my first image with colour and cut it.
I then ended up with my final image of my club penguin penguin black and white
If I wanted just the outline I would hit shift and colour to black and then without shift hit the no colour option.